CN104021976B - Permanent magnetic vacuum breaker - Google Patents
Permanent magnetic vacuum breaker Download PDFInfo
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- CN104021976B CN104021976B CN201410257780.8A CN201410257780A CN104021976B CN 104021976 B CN104021976 B CN 104021976B CN 201410257780 A CN201410257780 A CN 201410257780A CN 104021976 B CN104021976 B CN 104021976B
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Abstract
The invention discloses a kind of permanent magnetic vacuum breaker, comprise breaker body and controller, described controller includes permanent magnet mechanism and manual closing mechanism, its technical scheme main points are in conjunction with forming manual closing mechanism by ratchet and leverage, make up the defect that permanent magnet vacuum mechanism manual can not close a floodgate, and have the advantages that divide-shut brake speed is fast, security performance is high, this product also can divide closing operation in the situation that there is no power supply, and having solved this product is not having in power supply situation, to carry out manually operated inconvenience; Permanent magnetic vacuum breaker in the past closes on branch line and all will utilize generator charging to operate out of doors, in remote mountain areas carrying generating equipment and be difficult for increasing related personnel's work difficulty.
Description
Technical field
The present invention relates to a kind of circuit protection device, more particularly, it relates to a kind of breaker.
Background technology
Permanent magnetic vacuum breaker is mainly made up of vacuum circuit breaker body, controller and external voltage transformer three parts,Three is electrically connected by aviation socket and outdoor hermetically-sealed cable, has fault detection capability, and function and communication are controlled in protectionFunction, can reliably judge, sense switch is into and out of milliampere level zero-sequence current and the phase fault electric current of line side, realizes automaticallyExcision singlephase earth fault and phase fault.
Permanent magnetic vacuum breaker adopts permanent-magnet manipulating mechanism, closes out of doors and all will utilize generator charging to carry out on branch lineOperation, and at next manual brake separating or the combined floodgate of cannot carrying out of the situation that there is no power supply, such permanent magnetic vacuum breaker is inclined to one side at someMountain area far away, because carrying generating equipment is extremely difficult, has increased operating personnel's work difficulty. Therefore occurred on the market in the recent periodThe Chinese patent that some permanent magnetic vacuum breakers with manual divide-shut brake are CN203179784U as notification number discloses onePhased vacuum permanent magnet circuit breaker manual synchronization brake separating mechanism, can realize the phased vacuum permanent magnet circuit breaker of armstrong's patent simultaneous break,By rotating AB phase camshaft, drive C phase camshaft synchronously to rotate by synchronizing bar, when camshaft is during to 45 ° of anticlockwises,The connecting lever of camshaft can order about phase-control permanent magnet breaker three-phase synchronous separating brake, and the asynchronous time is less than 3ms. It is characterized in that: useSynchronizing bar couples together AB phase camshaft and C phase camshaft, can accurately realize AB phase and keep equidirectional with C phase camshaftWith angle rotation, anglec of rotation error is less than 1 °. The link gear of this utility model can complete phased true under power down modeThe mechanical synchronization separating brake of empty permanent-magnet breaker, can avoid phased vacuum permanent magnet circuit breaker three characteristics of the middle term voltage injustice in the time of asynchronous separating brakeWeighing apparatus causes the misoperation of protection, avoids the electric infringement of imbalance of three-phase voltage to power load and electrical equipment.
But, manually control and asking that automatic control can not be had both although above-mentioned patent has solved in permanent magnetic vacuum breakerTopic, but manual manipulation mechanism closing speed is wherein slow, and lack self-locking mechanism, in divide-shut brake process easily because of tripping mechanismSwing back and forth a large amount of sparks of appearance and cause switching-on mechanism to burn out or occur security incident, its security performance need to strengthen.
Summary of the invention
The deficiency existing for prior art, the object of the present invention is to provide that a kind of closing speed is fast, security performance is highThe permanent magnetic vacuum breaker that has manual control concurrently and automatically control.
For achieving the above object, the invention provides following technical scheme:
A kind of permanent magnetic vacuum breaker, comprises breaker body and controller, and described controller comprises mechanism case, electromagnetism deciliter gateStructure, a side of described mechanism case is that combined floodgate side and opposite side are separating brake side, between described separating brake side, combined floodgate side, has set up drivingBar, is provided with moving contact on described drive rod, is provided with and the static contact of described moving contact clamping institute on described breaker bodyState drive rod and breaker body and link together by the clamping of described moving contact and static contact, described electromagnetism close/open machine is establishedPut in separating brake side and comprise moving iron core, static iron core, closing coil, switching winding and the first permanent magnet, wherein:
Between the inwall of described mechanism case and moving iron core, be provided with and the tripping spring of the coaxial setting of described drive rod described tripping springOne end is connected with the inwall of mechanism case and the other end is connected with drive rod, and described tripping spring can be in described moving iron core and described mechanismFlexible or stretching vertically under the pressure-acting of chamber interior wall;
Described controller also comprises manual closing mechanism, and described manual closing mechanism is arranged on described combined floodgate side, described manual closing mechanismComprise handle, ratchet, cam and switching-in spring,
Described handle comprises fixed bar and dwang, and described dwang is connected to the periphery of described fixed bar and drives institute by described dwangState fixed bar and rotate, described fixed bar one end extends in described mechanism case outside, and the other end is plugged on institute through described mechanism case inwallState in the gear hole of ratchet;
Described cam is arranged in described mechanism case, comprises operating portion and moving runner, and described moving runner can be nibbled mutually with described ratchetClose;
Described rotation section is connected on described operating portion by a rotating shaft and described rotation section can be rotated around described rotating shaft, described combined floodgate bulletSpring one end is connected with drive rod, and the other end is connected on the operating portion of described cam, and drives described operation by described switching-in springPortion do with respect to described ratchet near or away from motion.
By adopting technique scheme, electromagnetism close/open machine and manually close/open machine are separately positioned on drive rod two endsAnd link and make described permanent magnetic vacuum breaker have manual control concurrently and automatically control two kinds and control function by drive rod, manually closingWhen lock, rotate described cam by handle, in cam rotation process, elongate described switching-in spring, stressed at described switching-in springBe stretched to after the limit, described spring drives drive rod motion, and described drive rod promotes moving contact and makes described moving contact and static contact buttonCombined floodgate, has utilized the distortion of spring to ensure closing speed, adopts ratchet to play auto-lock function, can limitGear can only be toward single direction running in rotation process, prevents from occurring in making process that gear reverse causes repeatedly closing a floodgate, dividesLock causes a large amount of electric arc, spark and occurs security incident, and described permanent magnetic vacuum breaker both can have automatic closing in electric situationAlso can adopt manual mode to complete feed motion not having in electric, be electromagnetism by adopting lever operated replacement carrying generatorOperating mechanism charging or use crowbar close a floodgate, and simplify permanent magnetic vacuum breaker operating procedure, utilize ratchet locking hand simultaneouslyDynamic circuit connector brake mechanism, occurs that surprisingly performance tightens security in preventing from closing a floodgate.
The present invention is further set to: described switching-in spring closes drive rod and is set to lever connection.
By adopting technique scheme, between described switching-in spring and drive rod, be provided with lever, described switching-in spring connectsBe connected on the long arm of force of lever, described drive rod is connected on the short arm of force of lever, utilizes lever principle that described switching-in spring is drawnThe moving required pulling force of drive rod is down to minimum, reduces the length that switching-in spring is stretched in labour-saving simultaneously, plays protection combined floodgate bulletThe effect of spring, extends service life of switching-in spring described in it, has indirectly improved the security performance of described permanent magnetic vacuum breaker.
The present invention is further set to: described switching-in spring side is provided with the second permanent magnet.
By adopting technique scheme, described the second permanent magnet has magnetic attraction to cam, in separating brake, and instituteState the second permanent magnet a part of separating brake power can be provided, accelerate separating brake action, reduce the generation of separating brake electric arc.
The present invention is further set to: described ratchet is set to ratchet, is provided with ratchet adaptation on described handleRatchet.
By adopting technique scheme, it is fairly simple, effectively a kind of that described ratchet structure belongs in ratchet,Coordinate by pawl-and-gearing tooth, be just enough to reach the effect of the manual close/open machine of unidirectional control, in the process of turning handleHandle can rotate to both direction, but only has a direction can rotate described ratchet, and other direction is real is idle running, sideJust in closing by hand process, not only can adjust handle turned position but also limiting gear group can only single direction running in good time.
The present invention is further set to: described separating brake side is provided with emergency opening mechanism, and described emergency opening mechanism comprises pointLock handle and kinematic link, described separating brake handle is fixedly connected with kinematic link, and described kinematic link and mechanism case are hinged, and instituteStating drive rod is connected with drive rod lever.
By adopting technique scheme, described permanent magnetic vacuum breaker can complete promptly by described emergency opening mechanismSeparating brake, in the time of permanent magnet opening and closing failure mechanisms, rotates described separating brake handle, and described kinematic link drives moving contact motion to make it de-Go out static contact and complete separating brake action, ensure that described permanent magnetic vacuum breaker can cut off separating brake at any time, guarantees that it has emergency cut-offMeasure.
Brief description of the drawings
Fig. 1 is the structural representation of permanent magnetic vacuum breaker embodiment of the present invention;
Fig. 2 is the lateral plan of permanent magnetic vacuum breaker embodiment of the present invention;
Fig. 3 is manual closing mechanism schematic diagram in permanent magnetic vacuum breaker embodiment of the present invention;
Fig. 4 is urgent close/open machine schematic diagram in permanent magnetic vacuum breaker embodiment of the present invention.
Reference numeral: 1. breaker body; 2. controller; 21. electromagnetism close/open machines; 211. moving iron cores; 212. quiet ironCore; 213. switching winding; 214. closing coil; 215. first permanent magnets; 216. drive rod; 22. manual closing mechanisms;221. handle; 222. ratchet; 223. cam; 224. switching-in spring; 225. tripping spring; 226. ratchet; 227. Lever machineStructure; 228. emergency opening mechanism; 229; The second permanent magnet; 230; Operating portion; 231. rotation section; 232. separating brake handles;233. kinematic link; 23. mechanism cases; 24. separating brake sides; 25. combined floodgate sides; 3. moving contact; 4. static contact.
Detailed description of the invention
Referring to figs. 1 through Fig. 3, permanent magnetic vacuum breaker embodiment of the present invention is described further.
A kind of permanent magnetic vacuum breaker, comprises breaker body 1 and controller 2, and described controller 2 comprises control mechanism case23, electromagnetism close/open machine 21, the structure of breaker body 1 is the vertical three-phase column support type of casing, by conduction arc extinguishing is mainlyThe five part compositions such as system, insulation system, current transformer, transmission system, housing, a side of described mechanism case 23 is for closing a floodgateSide 25 and with opposite side be separating brake side 24, between described separating brake side 24, combined floodgate side 25, set up drive rod 216, described in driveIn lever 216, be provided with moving contact 3, on described breaker body 1, be provided with can with the static contact of described moving contact 3 clampings4, described drive rod 216 is connected to one with described breaker body 1 by the clamping of described moving contact 3 and described static contact 4Rise, described electromagnetism close/open machine 21 is arranged on separating brake side 24 and comprises moving iron core 211, static iron core 212, closing coil214, switching winding 213 and the first permanent magnet 215, wherein:
Between the inwall of described mechanism case 23 and moving iron core 211, be provided with the tripping spring with described drive rod 216 coaxial settings225, described tripping spring 225 one end are connected with the inwall of mechanism case 23 and the other end is connected with drive rod 216, described separating brakeSpring 225 can stretch vertically or stretch under the pressure-acting of described moving iron core 211 and described mechanism case 23 inwalls;
Described controller 2 also comprises manual closing mechanism 22, and described manual closing mechanism 22 is arranged on described combined floodgate side 25, described handDynamic circuit connector brake mechanism 22 comprises handle 221, ratchet 222, cam 223 and switching-in spring 224,
Described handle 221 comprises fixed bar and dwang, and described dwang is connected to the periphery of described fixed bar and by described dwang bandMoving described fixed bar rotates, and described fixed bar one end extends in described mechanism case 23 outsides, and the other end is through in described mechanism case 23Wall is plugged in the gear hole of described ratchet 222;
Described cam 223 is arranged in described mechanism case 23, comprises operating portion 230 and moving runner, and described moving runner can be with described unidirectionalGear 222 is intermeshing;
Described rotation section 231 is connected on described operating portion 230 by a rotating shaft and described rotation section 231 can be rotated around described rotating shaft,Described switching-in spring 224 one end are connected with drive rod 216, and the other end is connected on the operating portion 230 of described cam 223, andBy described switching-in spring 224 drive described operating portion 230 do with respect to described ratchet 222 near or away from motion.
Described electromagnetism close/open machine principle: when described permanent magnetic vacuum breaker is during in open position, described moving iron core 211And between switching winding 213, air gap is little, magnetic resistance is low, large with closing coil 214 air gaps, magnetic resistance is high, therefore the first permanent magnet215 magnetic field Main Function and moving iron core 211 are near one end of switching winding 213, and the magnetic field force in described mechanism keeps moving ironCore 211 stops at the position near switching winding 213, makes described permanent magnetic vacuum breaker in gate-dividing state, works as permanent magnet vacuumWhen breaker need to close a floodgate, can first make closing coil 214 switch on, the magnetic line of force in its magnetic field producing mainly concentrates on moving ironOne end of the close closing coil 214 of core 211, and forming near switching winding 213 one end and the first permanent magnet 215The magnetic line of force in magnetic field offsets, and follows the rising of exciting curent, will increase, near closing line near switching winding 213 end suctionEnclosing 214 end end suction will weaken, and when being greater than counter-force near closing coil 214 end suction, coil current reaches after shake-up value,Moving iron core 211 will start towards closing coil 214 end motions, in the time that moving iron core 211 moves to terminal location, moving contact 3 andStatic contact 4 clampings complete combined floodgate, and the permanent magnet in vacuum permanent magnet circuit breaker selects NdFeB rear-earth material to make at present, neodymium boronPermanent magnet be subject to intense mechanical impact, high temperature and opposing magnetic field do the used time all may some or all of demagnetization but can't affectIts utilization in the true breaker of permanent magnetism.
Described manual closing mechanism principle: in the time of closing by hand, described permanent magnetic vacuum breaker is in gate-dividing state, described inMoving contact 3 separates with static contact 4, rotates described handle 221, and described handle 221 drives ratchet 222 to turn round, described inRatchet 222 engages with described cam 223, on described cam 223, connects switching-in spring 224, and described cam 223 rotatesIn process, elongate described switching-in spring 224, be stretched to after the limit described switching-in spring 224 is stressed, described spring drives and drivesBar 216 moves, and described drive rod 216 promotes moving contact 3 makes described moving contact 3 fasten combined floodgate with static contact 4, adoptsRatchet 222 can only, toward single direction running, prevent from occurring gear in making process by limiting gear in rotation processReverse causes repeatedly closing a floodgate, separating brake causes a large amount of electric arc, spark and occur security incident, and described permanent magnetic vacuum breaker is both passableThere being in electric situation automatic closing also can adopt manual mode to complete feed motion not having in electric, by adopting handle 221It is that electromagnetic operating mechanism charging or use crowbar close a floodgate that operation replaces carrying generator, simplifies permanent magnetic vacuum breaker operation stepSuddenly, utilize ratchet 222 to lock manual closing mechanism simultaneously, in preventing from closing a floodgate, occur that surprisingly performance tightens security.
Described switching-in spring 224 closes drive rod 216 and is set to lever connection, described switching-in spring 224 and drive rod 216Between be provided with leverage 227, described switching-in spring 224 is connected on the long arm of force of leverage 227, described drive rod216 are connected on the short arm of force of leverage 227, utilize lever principle to make described switching-in spring 224 pull 216 of drive rodsThe pulling force needing is down to minimum, reduces the length that switching-in spring 224 is stretched in labour-saving simultaneously, plays protection switching-in spring 224Effect, extend service life of switching-in spring 224 described in it.
Described switching-in spring 224 sides are provided with the second permanent magnet 229, and described the second permanent magnet 229 is to cam 223Have magnetic attraction, in separating brake, described the second permanent magnet 229 can provide a part of separating brake power, accelerates separating brake movingDo, reduce the generation of separating brake electric arc.
Described ratchet 222 is set to ratchet 222, and ratchet 222 is defined as the wheel with toothed surfaces or friction surfaceSon, is promoted to make step motion by ratchet 226, similar gear, coordinate, control the part that dialer converts with dialer, described handOn handle 221, be provided with and the ratchet 226 of ratchet 222 adaptations, described ratchet 226 is crotch shape and arranges, and described ratchet 226And the angle between handle 221 is less than 90 degree, in the time that handle 221 is made left and right reciprocally swinging, ratchet 222 can only be done unidirectionalThe transmission of having a rest, it is fairly simple, effectively a kind of that described ratchet 222 structures belong in ratchet 222, by ratchet 226 HesRatchet 222 teeth coordinate, and can rotate to both direction, but only have described in a direction can rotate in the process of rotation manualRatchet 222, other direction is real is idle running, the convenient handle 221 of both can in good time having adjusted in closing by hand process rotates positionPut but limiting gear group can only single direction running.
Described separating brake side 24 is provided with emergency opening mechanism 228, and described emergency opening mechanism 228 comprises separating brake handle 232With kinematic link 233, described separating brake handle 232 is fixedly connected with kinematic link 233, described kinematic link 233 and mechanism case23 is hinged, and described kinematic link 233 is connected with drive rod 216 levers, described in described permanent magnetic vacuum breaker can pass throughEmergency opening mechanism 228 completes emergency opening, while inefficacy, rotates described separating brake handle 221 in permanent magnet opening and closing mechanism 21,Described kinematic link drives moving contact 3 motions to make it deviate from static contact 4 and completes separating brake action, ensures described permanent magnetic vacuum breakerCan cut off at any time separating brake, guarantee that it has emergency cut-off measure.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is also not only confined to above-mentioned enforcementExample, all technical schemes belonging under thinking of the present invention all belong to protection scope of the present invention. It should be pointed out that for the artThose of ordinary skill, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also shouldBe considered as protection scope of the present invention.
Claims (4)
1. a permanent magnetic vacuum breaker, comprises breaker body and controller, and described controller comprises mechanism case, electromagnetism divide-shut brakeMechanism, a side of described mechanism case is that combined floodgate side and opposite side are separating brake side, between described separating brake side, combined floodgate side, has set up drivingBar, is provided with moving contact on described drive rod, is provided with and the static contact of described moving contact clamping institute on described breaker bodyState drive rod and breaker body and link together by the clamping of described moving contact and static contact, described electromagnetism close/open machine is establishedPut in separating brake side and comprise moving iron core, static iron core, closing coil, switching winding and the first permanent magnet, it is characterized in that:
Between the inwall of described mechanism case and moving iron core, be provided with and the tripping spring of the coaxial setting of described drive rod described tripping springOne end is connected with the inwall of mechanism case and the other end is connected with drive rod, and described tripping spring can be in described moving iron core and described mechanismFlexible or stretching vertically under the pressure-acting of chamber interior wall;
Described controller also comprises manual closing mechanism, and described manual closing mechanism is arranged on described combined floodgate side, described manual closing mechanismComprise handle, ratchet, cam and switching-in spring,
Described handle comprises fixed bar and dwang, and described dwang is connected to the periphery of described fixed bar and drives institute by described dwangState fixed bar and rotate, described fixed bar one end extends in described mechanism case outside, and the other end is plugged on institute through described mechanism case inwallState in the gear hole of ratchet;
Described cam is arranged in described mechanism case, comprises operating portion and moving runner, and described moving runner can be nibbled mutually with described ratchetClose;
Rotation section is connected on described operating portion by a rotating shaft and described rotation section can be rotated around described rotating shaft, described switching-in spring oneEnd is connected with drive rod, and the other end is connected on the operating portion of described cam, and drives described operating portion to do by described switching-in springWith respect to described ratchet near or away from motion, described switching-in spring is set to lever with drive rod and is connected, described combined floodgateBetween spring and drive rod, be provided with lever, described switching-in spring is connected on the long arm of force of lever, and described drive rod is connected to thick stickOn the short arm of force of bar.
2. permanent magnetic vacuum breaker according to claim 1, is characterized in that: described switching-in spring side is provided with second permanentMagnet.
3. permanent magnetic vacuum breaker according to claim 2, is characterized in that: described ratchet is set to ratchet, described handOn handle, be provided with the ratchet with ratchet adaptation.
4. permanent magnetic vacuum breaker according to claim 3, is characterized in that: described separating brake side is provided with emergency opening mechanism,Described emergency opening mechanism comprises separating brake handle and kinematic link, and described separating brake handle is fixedly connected with kinematic link, described transmissionConnecting rod and mechanism case are hinged, and described kinematic link is connected with drive rod lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410257780.8A CN104021976B (en) | 2014-06-10 | 2014-06-10 | Permanent magnetic vacuum breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410257780.8A CN104021976B (en) | 2014-06-10 | 2014-06-10 | Permanent magnetic vacuum breaker |
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| CN104021976A CN104021976A (en) | 2014-09-03 |
| CN104021976B true CN104021976B (en) | 2016-05-25 |
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| CN201410257780.8A Active CN104021976B (en) | 2014-06-10 | 2014-06-10 | Permanent magnetic vacuum breaker |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070585A (en) * | 2015-08-25 | 2015-11-18 | 李新建 | Manual opening-closing type permanent magnetic mechanism |
| CN109727830A (en) * | 2017-10-28 | 2019-05-07 | 王静洋 | A kind of circuit breaker operation mechanism driven using electromagnetic vibrator |
| CN109036884B (en) * | 2018-09-19 | 2023-11-10 | 宁夏力成电气集团有限公司 | Intelligent high-voltage vacuum circuit breaker and mechanical characteristic parameter determining method thereof |
| CN111354594B (en) * | 2020-03-16 | 2022-03-25 | 大航有能电气有限公司 | Complete circuit breaker capable of quickly closing and opening brake |
| CN112017875B (en) * | 2020-08-23 | 2023-02-24 | 国网山东省电力公司莱芜供电公司 | Control device of high-voltage switch |
| CN112885663B (en) * | 2021-01-12 | 2023-02-28 | 浙江越岭电气有限公司 | Simple indoor high-voltage grounding switch |
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| CN201527926U (en) * | 2009-11-23 | 2010-07-14 | 浙江格立特电气设备有限公司 | Outdoor permanent magnetic high-voltage vacuum circuit breaker with function of manual quick closing |
| CN202034297U (en) * | 2011-03-14 | 2011-11-09 | 董岳向 | Outdoor high-pressure permanent-magnet vacuum circuit breaker |
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| CN104021976A (en) | 2014-09-03 |
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Denomination of invention: Vacuum permanent magnet circuit breaker Effective date of registration: 20210317 Granted publication date: 20160525 Pledgee: Agricultural Bank of China Limited by Share Ltd. Yueqing branch Pledgor: ZHEJIANG FUERTE ELECTRICAL APPARATUS Co.,Ltd. Registration number: Y2021330000198 |
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